Trees That Cause Allergic Reactions

Allergenic trees:
  • Beech family - oaks
  • Birch family - ornamental river birch
  • Cypress family - arborvitaes, cedars, junipers
  • Elm family - elms
  • Horsechestnut family - Mexican buckeye
  • Maple family - boxelders, maples
  • Mulberry family - mulberries, osage oranges
  • Olive family - ashes
  • Quassia family - tree-of-heaven
  • Sycamore family - sycamores
  • Tamarisk family - tamarisks
  • Taxodium family - bald cypresses
  • Walnut family - hickories, pecans, walnuts
  • Willow family - cottonwoods, willows
  • Witch hazel family - sweetgums
(Only the above trees in each family cause allergenic reactions)

Non-allergenic trees:

  • Evergreens
    • Carolina cherrylaurels
    • loquats
    • podocarpus
    • southern magnolias

  • Deciduous
    • callery pears
    • catalpas
    • Chinese pistaches
    • crape myrtles
    • figs
    • flowering dogwoods
    • ginkgos
    • goldenraintrees
    • honeylocusts
    • mimosas
    • palms
    • purple leaf plums
    • saucer magnolias
(Taken from publication # 430-020, Virginia Cooperative Extension Service)

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This article appeared in the May 2001 issue of Horticulture Update, edited by Dr. Douglas F. Welsh, and produced by Extension Horticulture, Texas Agricultural Extension Service, The Texas A&M University System, College Station, Texas.